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2 resultados encontrados para: TEMA: Anolis lemurinus
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1.
- Artículo con arbitraje
*En hemeroteca, SIBE-Tapachula
Predation of Anastrepha ludens (Diptera: tephritidae) by Norops serranoi (Reptilia: polychrotidae): functional response and evasion Ability
Dor Roques, Ariane Liliane Jeanne ; Valle Mora, Javier Francisco (coaut.) ; Rodríguez Rodríguez, Susana Eva (coaut.) ; Liedo Fernández, Pablo (coaut.) ;
Contenido en: Environmental Entomology Vol. 43, no. 3 (June 2014), p. 706-715 ISSN: 0046-225X
Bibliotecas: Tapachula
Cerrar
SIBE Tapachula
53746-10 (Disponible)
Disponibles para prestamo: 1
Nota: En hemeroteca, SIBE-Tapachula
Resumen en: Inglés |
Resumen en inglés

The Mexican fruit fly, Anastrepha ludens (Loew), is one of the 10 worldwide more important fruit crop pests. Orchards of southeastern Chiapas also shelter the tree-dwelling lizard Norops serranoi (Köhler), which likely prey upon these flies. In standard laboratory conditions, we determined the functional response of four male and four female lizards on mass-reared fruit flies. We used a general logistic analysis of proportion of killed prey versus available prey to determine the shape of the functional response. Male lizards showed a type II functional response, while females showed a type III functional response. For the highest fruit fly densities, female lizards caught significantly more fruit flies than males did. The predator evasion ability and the survival of mass-reared and wild fruit flies were compared. Wild fruit flies evaded more male lizard attacks than mass-reared flies. However, when female lizards attacked, there was no significant difference between strains. Fruit flies survival was higher with male than with female lizards, but it did not depend on fruit fly strains. This is the first report of a vertebrate preying on the Mexican fruit fly, demonstrating that female lizards impose a higher predation pressure and are more efficient at capturing wild fruit flies than males. We discuss the implications of our results on mass-rearing and quality control of sterile flies.


2.
Artículo
*En hemeroteca, SIBE-San Cristóbal
Divergence in morphology, but not habitat use, despite low genetic differentiation among insular populations of the lizard Anolis lemurinus in Honduras
Logan, Michael L. ; Montgomery, Chad E. (coaut.) ; Boback, Scott M. (coaut.) ; Reed, Robert N. (coaut.) ; Campbell, Jonathan A. (coaut.) ;
Contenido en: Journal of Tropical Ecology Vol. 28, no. 2 (March 2012), p. 215-222 ISSN: 0266-4674
Bibliotecas: San Cristóbal
Cerrar
SIBE San Cristóbal
51260-10 (Disponible)
Disponibles para prestamo: 1
Nota: En hemeroteca, SIBE-San Cristóbal
Resumen en: Inglés |
Resumen en inglés

Studies of recently isolated populations are useful because observed differences can often be attributed to current environmental variation. Two populations of the lizard Anolis lemurinus have been isolated on the islands of Cayo Menor and Cayo Mayor in the Cayos Cochinos Archipelago of Honduras for less than 15 000 y. We measured 12 morphometric and 10 habitat-use variables on 220 lizards across these islands in 2 y, 2008 and 2009. The goals of our study were (1) to explore patterns of sexual dimorphism, and (2) to test the hypothesis that differences in environment among islandsmay have driven divergence in morphology and habitat use despite genetic homogeneity among populations. Although we found no differences among sexes in habitat use, males had narrower pelvic girdles and longer toe pads on both islands. Between islands, males differed in morphology, but neither males nor females differed in habitat use. Our data suggest that either recent selection has operated differentially on males despite low genetic differentiation, or that they display phenotypic plasticity in response to environmental variation.We suggest that patternsmay be driven by variation in intrapopulation density or differences in predator diversity among islands.